diff options
Diffstat (limited to 'tools/testing/selftests/timers/rtctest.c')
| -rw-r--r-- | tools/testing/selftests/timers/rtctest.c | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c deleted file mode 100644 index 6e17b96551ec..000000000000 --- a/tools/testing/selftests/timers/rtctest.c +++ /dev/null @@ -1,328 +0,0 @@ -/* - * Real Time Clock Driver Test/Example Program - * - * Compile with: - * gcc -s -Wall -Wstrict-prototypes rtctest.c -o rtctest - * - * Copyright (C) 1996, Paul Gortmaker. - * - * Released under the GNU General Public License, version 2, - * included herein by reference. - * - */ - -#include <stdio.h> -#include <linux/rtc.h> -#include <sys/ioctl.h> -#include <sys/time.h> -#include <sys/types.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdlib.h> -#include <errno.h> - -#ifndef ARRAY_SIZE -# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -#endif - -/* - * This expects the new RTC class driver framework, working with - * clocks that will often not be clones of what the PC-AT had. - * Use the command line to specify another RTC if you need one. - */ -static const char default_rtc[] = "/dev/rtc0"; - -static struct rtc_time cutoff_dates[] = { - { - .tm_year = 70, /* 1970 -1900 */ - .tm_mday = 1, - }, - /* signed time_t 19/01/2038 3:14:08 */ - { - .tm_year = 138, - .tm_mday = 19, - }, - { - .tm_year = 138, - .tm_mday = 20, - }, - { - .tm_year = 199, /* 2099 -1900 */ - .tm_mday = 1, - }, - { - .tm_year = 200, /* 2100 -1900 */ - .tm_mday = 1, - }, - /* unsigned time_t 07/02/2106 7:28:15*/ - { - .tm_year = 205, - .tm_mon = 1, - .tm_mday = 7, - }, - { - .tm_year = 206, - .tm_mon = 1, - .tm_mday = 8, - }, - /* signed time on 64bit in nanoseconds 12/04/2262 01:47:16*/ - { - .tm_year = 362, - .tm_mon = 3, - .tm_mday = 12, - }, - { - .tm_year = 362, /* 2262 -1900 */ - .tm_mon = 3, - .tm_mday = 13, - }, -}; - -static int compare_dates(struct rtc_time *a, struct rtc_time *b) -{ - if (a->tm_year != b->tm_year || - a->tm_mon != b->tm_mon || - a->tm_mday != b->tm_mday || - a->tm_hour != b->tm_hour || - a->tm_min != b->tm_min || - ((b->tm_sec - a->tm_sec) > 1)) - return 1; - - return 0; -} - -int main(int argc, char **argv) -{ - int i, fd, retval, irqcount = 0, dangerous = 0; - unsigned long data; - struct rtc_time rtc_tm; - const char *rtc = default_rtc; - - switch (argc) { - case 3: - if (*argv[2] == 'd') - dangerous = 1; - case 2: - rtc = argv[1]; - /* FALLTHROUGH */ - case 1: - break; - default: - fprintf(stderr, "usage: rtctest [rtcdev] [d]\n"); - return 1; - } - - fd = open(rtc, O_RDONLY); - - if (fd == -1) { - perror(rtc); - exit(errno); - } - - fprintf(stderr, "\n\t\t\tRTC Driver Test Example.\n\n"); - - /* Turn on update interrupts (one per second) */ - retval = ioctl(fd, RTC_UIE_ON, 0); - if (retval == -1) { - if (errno == EINVAL) { - fprintf(stderr, - "\n...Update IRQs not supported.\n"); - goto test_READ; - } - perror("RTC_UIE_ON ioctl"); - exit(errno); - } - - fprintf(stderr, "Counting 5 update (1/sec) interrupts from reading %s:", - rtc); - fflush(stderr); - for (i=1; i<6; i++) { - /* This read will block */ - retval = read(fd, &data, sizeof(unsigned long)); - if (retval == -1) { - perror("read"); - exit(errno); - } - fprintf(stderr, " %d",i); - fflush(stderr); - irqcount++; - } - - fprintf(stderr, "\nAgain, from using select(2) on /dev/rtc:"); - fflush(stderr); - for (i=1; i<6; i++) { - struct timeval tv = {5, 0}; /* 5 second timeout on select */ - fd_set readfds; - - FD_ZERO(&readfds); - FD_SET(fd, &readfds); - /* The select will wait until an RTC interrupt happens. */ - retval = select(fd+1, &readfds, NULL, NULL, &tv); - if (retval == -1) { - perror("select"); - exit(errno); - } - /* This read won't block unlike the select-less case above. */ - retval = read(fd, &data, sizeof(unsigned long)); - if (retval == -1) { - perror("read"); - exit(errno); - } - fprintf(stderr, " %d",i); - fflush(stderr); - irqcount++; - } - - /* Turn off update interrupts */ - retval = ioctl(fd, RTC_UIE_OFF, 0); - if (retval == -1) { - perror("RTC_UIE_OFF ioctl"); - exit(errno); - } - -test_READ: - /* Read the RTC time/date */ - retval = ioctl(fd, RTC_RD_TIME, &rtc_tm); - if (retval == -1) { - perror("RTC_RD_TIME ioctl"); - exit(errno); - } - - fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n", - rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year + 1900, - rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec); - - /* Set the alarm to 5 sec in the future, and check for rollover */ - rtc_tm.tm_sec += 5; - if (rtc_tm.tm_sec >= 60) { - rtc_tm.tm_sec %= 60; - rtc_tm.tm_min++; - } - if (rtc_tm.tm_min == 60) { - rtc_tm.tm_min = 0; - rtc_tm.tm_hour++; - } - if (rtc_tm.tm_hour == 24) - rtc_tm.tm_hour = 0; - - retval = ioctl(fd, RTC_ALM_SET, &rtc_tm); - if (retval == -1) { - if (errno == EINVAL) { - fprintf(stderr, - "\n...Alarm IRQs not supported.\n"); - goto test_DATE; - } - - perror("RTC_ALM_SET ioctl"); - exit(errno); - } - - /* Read the current alarm settings */ - retval = ioctl(fd, RTC_ALM_READ, &rtc_tm); - if (retval == -1) { - if (errno == EINVAL) { - fprintf(stderr, - "\n...EINVAL reading current alarm setting.\n"); - goto test_DATE; - } - perror("RTC_ALM_READ ioctl"); - exit(errno); - } - - fprintf(stderr, "Alarm time now set to %02d:%02d:%02d.\n", - rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec); - - /* Enable alarm interrupts */ - retval = ioctl(fd, RTC_AIE_ON, 0); - if (retval == -1) { - if (errno == EINVAL || errno == EIO) { - fprintf(stderr, - "\n...Alarm IRQs not supported.\n"); - goto test_DATE; - } - - perror("RTC_AIE_ON ioctl"); - exit(errno); - } - - fprintf(stderr, "Waiting 5 seconds for alarm..."); - fflush(stderr); - /* This blocks until the alarm ring causes an interrupt */ - retval = read(fd, &data, sizeof(unsigned long)); - if (retval == -1) { - perror("read"); - exit(errno); - } - irqcount++; - fprintf(stderr, " okay. Alarm rang.\n"); - - /* Disable alarm interrupts */ - retval = ioctl(fd, RTC_AIE_OFF, 0); - if (retval == -1) { - perror("RTC_AIE_OFF ioctl"); - exit(errno); - } - -test_DATE: - if (!dangerous) - goto done; - - fprintf(stderr, "\nTesting problematic dates\n"); - - for (i = 0; i < ARRAY_SIZE(cutoff_dates); i++) { - struct rtc_time current; - - /* Write the new date in RTC */ - retval = ioctl(fd, RTC_SET_TIME, &cutoff_dates[i]); - if (retval == -1) { - perror("RTC_SET_TIME ioctl"); - close(fd); - exit(errno); - } - - /* Read back */ - retval = ioctl(fd, RTC_RD_TIME, ¤t); - if (retval == -1) { - perror("RTC_RD_TIME ioctl"); - exit(errno); - } - - if(compare_dates(&cutoff_dates[i], ¤t)) { - fprintf(stderr,"Setting date %d failed\n", - cutoff_dates[i].tm_year + 1900); - goto done; - } - - cutoff_dates[i].tm_sec += 5; - - /* Write the new alarm in RTC */ - retval = ioctl(fd, RTC_ALM_SET, &cutoff_dates[i]); - if (retval == -1) { - perror("RTC_ALM_SET ioctl"); - close(fd); - exit(errno); - } - - /* Read back */ - retval = ioctl(fd, RTC_ALM_READ, ¤t); - if (retval == -1) { - perror("RTC_ALM_READ ioctl"); - exit(errno); - } - - if(compare_dates(&cutoff_dates[i], ¤t)) { - fprintf(stderr,"Setting alarm %d failed\n", - cutoff_dates[i].tm_year + 1900); - goto done; - } - - fprintf(stderr, "Setting year %d is OK \n", - cutoff_dates[i].tm_year + 1900); - } -done: - fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n"); - - close(fd); - - return 0; -} |